Improvement in sheet-metal cans



C. GREEN 8L W. WILSON, J1'.

Sheet-Metal Can.

Patented Sept. 30, 1879.

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N. PETERS. FHUT UNITED STATES PATENT OEEIoEL CHARLES GREEN AND WILLIAMWILSON, JR., OF WILMINGTON, DELAWARE.

IMPROVEMENT IN SHEET-METAL CANS.

Specification forming part of Letters Patent No. 220,022, datedSeptember 30, 1879; application led May 29, 1878.

To all whom it may concern:

Be it known that we, CHARLES GREEN-and WILLIAM WILSON, J r., of the cityof Wilmington, county of New Castle and State of Delaware, have inventedan Improvement in Sheet- Metal Cans, of which the following is aspecification.

This invention is available in cans for holding paints, preserves,solids, or liquids from which the atmosphere is to be excluded. 'We makeuse of a soldered joint that is easily broken by pressure uponthe end ofthe can.

In the drawings, Figure 1 is a section of the can complete. Fig. 2 is anelevation of the same, and Fig. 3 is a section of a portion of the canand cover in enlarged size.

The body of the can is of any desired size or shape. The sides a andbottom b are united firmly together. lf the can is used for holdingliquid or semi-liquid materials it is preferable to solder on the cover,as hereinafter described, and to fill the can, while in an invertedposition, through the perforated bottom, and then (solder on the diskso, as has heretofore been one.

The opening might be in the cover instead of the bottom.

The cover d is made with a rim, e, either out of one piece of sheetmetal or out of two, as heretofore usual.

It is tovbe understood that the lid may be placed with the inner surfaceagainst the end of the can, or it may be placed so that a space of aneighth of an inch, more or less, is left at this place, as shown, withthe result in either case, when the cover is driven down upon the canbya hammer or pressure, the edge of the sheet-metal rim breaks away fromthe body, the solder being cut or broken by the inclosed metal band o,and therebyvthe cover is liberated, so that it can be put on-and takenoff easily.

A groove at m may be used to indicate the position of the edge of thecover.

To aid in supporting the edge and insuring a separation of thesolder,especially with thin metal, we make use of an inolosed ring orband, o, of any stili" material, but preferably of sheetiron,-so thatthe solder will not adhere to the same. This band sustains the pressureupon the cover, and causes the separation at the edge of the rim whenpressure is exerted upon the top of the can.

We are not the original orfirst inventors or discoverers of asheet-metal can provided with an interspace between the cover and bodyof the can, the two being united by a frangible joint for the purpose ofopening the can by directly-applied vertical force; nor of such aconstruction when the rim of the can turns against the body and issoldered thereto only at or near its turned edge.

We claim as our invention.-

1. The sheet-metal coverfor a can, made with a rim parallel, or nearlyso, with the body of the can, in combination with and inclosing a stiffmetal band, o, as and for the purpose set forth.

2. The separate band o, introduced between `the soldered rim e of thecan-cover and the body of the can, and extending'from the soldered jointto cover d, or nearly so, for the purposes and substantially as setforth.

1n testimony whereof we have hereunto signed our names this 21st day ofMay, 1878.

CHARLES GREEN, WM. WILSON, JR.

1n presence of- DAVID G. FUREY, ROBERT LEITHEUTT.

